IVTC PAL? (probably NTSC2PAL)

[rhaz]

Hi. I have a PAL DVD which is very poor quality and when I make XVID I get very bad result. Here is the image (example how it looks when scenes changes)
<<edited>>

The DVD is also interlaced. So is it possible to deinterlace and fix those frames at a same time ripping with GKnot? What scripts/command lines should I use on .avs to fix that?

<<edited>>

[Hagbard23]

From the first view i would say, it is Blended Material - really difficult/impossible to clean up correctly. I had given you a chance, if it was anime-material, but with real moving pictures you have nearly no possibility to process this material to its original properties.

You can -nevertheless- deinterlace the material with a more or less good deinterlacer. If you don't care about "super-quality" you can try:

-Yadif(mod) ->Ultra-Fast
-TDeint -> Good Quality/Performance
-(Q)TGMC -> Best Quality, slowest performance

You CANNOT IVTC this material...it is PAL.

[rhaz]

Hagbard23 i tried that (Q)TGMC way and nothing has changed. Same issue.

[manono]

That's a pretty crummy source, from a VHS tape I would guess. And from an NTSC source that was field-blended to get to PAL. You'll have to edit the script GKnot makes to add in different filters:

Yadif(Mode=1)#or the bobber of your choice
SRestore()

Your sample wasn't all that good - dark and not much of the right kind of movement, but that script gets rid of most of the blending. Of course, the video has other kinds of problems also.

http://avisynth.org/mediawiki/Srestore

[rhaz]

manono I tried this and I got no changes.

Script:
LoadPlugin("C:\Program Files\GordianKnot\DGMPGDec\DGDecode.dll")
LoadPlugin("C:\Program Files\GordianKnot\AviSynthPlugins\UnDot.dll")
LoadCPlugin("C:\Program Files\GordianKnot\AviSynthPlugins\Yadif.dll")
LoadPlugin("C:\Program Files\GordianKnot\AviSynthPlugins\mt_masktools-25.dll")
Import("C:\Program Files\GordianKnot\AviSynthPlugins\Srestore.avsi")
mpeg2source("path.d2v")
Yadif(Mode=1)#or the bobber of your choice
SRestore()
crop(14,4,684,568)
LanczosResize(608,464)
Undot()

[manono]

What does that mean, no changes? With the small sample it removed the majority of the blends, although there were still a lot left. And it put it back at 23.976fps which is a significant change, I think.

Also, to even make SRestore work you need several more plugins, although maybe they're autoloading for you. Your script opens OK in VDub(Mod)? It doesn't usually do anything at the scene changes, which you mentioned at the beginning. I either go through the video and FreezeFrame them to duplicate a good frame before or after, or just leave them alone if I don't feel like doing all that work. Didee came up with a script to clean up the scene changes, but it's pretty slow and I've never tried it:

# Plugins
#from Didee
Import("...\Srestore.avs")
Loadplugin("...\nnedi2\nnedi2.dll")
Loadplugin("...\masktools-v2.0a44\mt_masktools-25.dll")
Loadplugin("...\RemoveGrain-0.9\RemoveGrainSSE3.dll")
Loadplugin("...\RemoveDirt\RemoveDirtSSE2.dll")

# Source
MPEG2source("VTS_01_1.d2v")

# Insane code
nedibob = nnedi2(field=-2)
prev = nedibob.selectevery(1,-1)
next = nedibob.selectevery(1,1)
max = nedibob.mt_logic(prev,"max",U=3,V=3).mt_logic(next ,"max",U=3,V=3)
min = nedibob.mt_logic(prev,"min",U=3,V=3).mt_logic(next ,"min",U=3,V=3)
calm = nedibob.merge(nedibob.clense(reduceflicker=false), 0.5)
resharp = mt_clamp(calm.sharpen(1),max,min,0,0,U=3,V=3)
restore = calm.srestore(frate=25) # or nedibob.srestore(frate=25), or resharp.SRestore(frate=25)

# freeze before+after scenechange. Needs v0.9 of RemoveDirt.dll
prev = restore.selectevery(1,-1)
next = restore.selectevery(1,1)
SCclean = restore.SCSelect(next,prev,restore,dfactor=2.0) # 2.0 ~ 5.0

return(SCclean) # return(restore) for NO scenechange cleanup

[rhaz]

LoadPlugin("C:\Program Files\GordianKnot\DGMPGDec\DGDecode.dll")
LoadPlugin("C:\Program Files\GordianKnot\AviSynthPlugins\UnDot.dll")
LoadPlugin("C:\Program Files\GordianKnot\AviSynthPlugins\nnedi2.dll")
LoadPlugin("C:\Program Files\GordianKnot\AviSynthPlugins\RemoveGrainSSE3.dll")
LoadPlugin("C:\Program Files\GordianKnot\AviSynthPlugins\RemoveDirtSSE2.dll")
LoadPlugin("C:\Program Files\GordianKnot\AviSynthPlugins\mt_masktools-25.dll")

Import("C:\Program Files\GordianKnot\AviSynthPlugins\Srestore.avsi")

mpeg2source("path.d2v")

crop(14,4,684,568)
LanczosResize(608,464)
Undot()

# Insane code
nedibob = nnedi2(field=-2)
prev = nedibob.selectevery(1,-1)
next = nedibob.selectevery(1,1)
max = nedibob.mt_logic(prev,"max",U=3,V=3).mt_logic(next ,"max",U=3,V=3)
min = nedibob.mt_logic(prev,"min",U=3,V=3).mt_logic(next ,"min",U=3,V=3)
calm = nedibob.merge(nedibob.clense(reduceflicker=false), 0.5)
resharp = mt_clamp(calm.sharpen(1),max,min,0,0,U=3,V=3)
restore = calm.srestore(frate=25) # or nedibob.srestore(frate=25), or resharp.SRestore(frate=25)

# freeze before+after scenechange. Needs v0.9 of RemoveDirt.dll
prev = restore.selectevery(1,-1)
next = restore.selectevery(1,1)
SCclean = restore.SCSelect(next,prev,restore,dfactor=2.0) # 2.0 ~ 5.0

return(SCclean) # return(restore) for NO scenechange cleanup


result: (looks like didnt help)
<<edited>>

[manono]

There are too many blends in your movie to get it unblended properly. The sample only had one scene change, but at that change there were 3 blended fields in a row. That makes it impossible to get a clean scene change. Blame your lousy source.

[rhaz]

Well it means bye bye to this one DVD disc :/ okay one more <<edited>> (other DVD) and what script would you suggest for that one? Or is it same as previous DVD?

Damn, I just realized that all my DVDs are crap. And all retail!

[manono]

The second one needs an IVTC. It can't be the same as the first sample as that one was from a PAL DVD and the second one's from an NTSC DVD.

If you're going to post more samples, please try and choose pieces that have steady movement. Both so far have been pretty movement free.

[rhaz]

Okay I uploaded another <<edited>> of previous NTSC release with more movement. With some people running and racing cars. So that one needs only IVTC i.e. to select on GK invert telecine option? That's it? But the source is also interlaced so what plugin you would recommend?

[manono]

That's a much better sample. Your source is really lousy, a direct port from a VHS tape to DVD. The duplicate fields are really supposed to be exact duplicates here, but aren't. In any event, you make the D2V Project File with the field operation set for Honor Pulldown Flags. Then ticking the Inverse Telecine box in GKnot should work for that one.

[Didée]

Didee came up with a script to clean up the scene changes, but it's pretty slow and I've never tried it:

<script>

If you never tried it, how do you know it's slow? ;)


Anyhoo, this need clarification.

The code for cleaning scenechanges is only the few lines in the last part of the script. It is also very fast. And also, it is not by me ... that is, literally, the basic usage example for kassandro's SCSelect() filter.

The upper/bigger part of the script is not needed for scenechange cleaning. That one is (kind of) a mini-TGMC, without mo'comp or any other fancy stuff. It's a way of killing bob shimmer, specifically tailored for fieldblended sources. (i.e., better don't use that code on not-fieldblended interlaced sources...)

[manono]

Maybe instead of saying 'slow' I should have said 'slower'. Slower than what, you might ask? Slower than Yadif(Mode=1).SRestore(). Why? Because it uses Nnedi2.
...better don't use that code on not-fieldblended interlaced sources...)
Yes, the source is field-blended.